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Erionite-Na

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Erionit-Na, Analysiert
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Erionit-Na, Analysiert
Feinnadelige farblose Kristalle mit seidenglanz, BB = 3,8 mm; Fundort: Well No. 1, Ajo District, Little Ajo Mts, Pima Co., Arizona, USA.
Copyright: Bebo; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A031302, Donator: Münchener Micromounter
Location: USA/Arizona/Pima Co./Little Ajo Mts/Ajo District/Phelps Dodge Corporation Well No. 1
Mineral: Erionite-Na
Image: 1423389741
Rating: 9 (votes: 1)
License: Usage for Mineralienatlas project only
Erionit-Na, Analysiert (SNr: A031302)

Feinnadelige farblose Kristalle mit seidenglanz, BB = 3,8 mm; Fundort: Well No. 1, Ajo District, Little Ajo Mts, Pima Co., Arizona, USA.
Collection: Lithothek der Münchener Micromounter
Copyright: Bebo
Contribution: Münchener Micromounter 2015-02-08
Locality: Phelps Dodge Corporation Well No. 1 / Ajo District / Little Ajo Mts / Pima Co. / Arizona / USA

You find additional specimen at the Geolitho Museum

Collectors Summary

Color weiß, grün, grau, orange
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) 4
Solubility +++ Säuren
Crystal System hexagonal, P63/mmc

Chemism

Chemical formula

Na10(Si,Al)36O72·28H2O

Additional chem. information

Enthält häufig auch K und Ca. Bei der Auswertung von Analysen ist zu beachten, dass ein Ca durch 2 Na oder K ersetzt wird.

Chemical composition

Aluminium, Natrium, Silicium, Sauerstoff, Wasserstoff

Unit weight: 2887.4288878 u; Number of atoms in the formula: 202

Info

Empirical formula:

Na10(Si0.75Al0.25)36O72·28H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.95

56

27.72

1.0079470

56.4450320
Oxygen

O

55.41

100

49.50

15.9994300

1,599.9430000
Sodium

Na

7.96

10

4.95

22.9897702

229.8977020
Aluminium

Al

8.41

9

4.46

26.9815382

242.8338438
Silicon

Si

26.26

27

13.37

28.0855300

758.3093100

Analysis wt%

SiO2 : 58.59, Al2O3 : 14.23, Fe2O3 : 0.40, MgO : 1.16, CaO : 2.67, Na2O : 0.64, K2O : 4.85, H2O : 16.59 (Ref: American Mineralogist 69)

Strunz 9th edition incl. updates

9.GD.20

9: Silikate (Germanate)
G: Gerüstsilikate (Tektosilikate) mit zeolithischem H2O; Familie der Zeolithe
D: Ketten von fünfer-Ringen
20:

Lapis Classification

VIII/J.26-090

VIII: SILIKATE
J: Gerüstsilikate (mit Zeolithen)
26: Zeolith-Gruppe; Würfelzeolithe

Classification by Hölzel

9.FL.240

9: SILICATES
F: Tektosilicates
L: Zeolites with 6-Rings

Dana 8th edition

77.01.02.05

77: Tektosilicates Tectosilicate Zeolite group
01: Tektosilicates Tectosilicate Zeolite group true zeolites
02: Chabazite and related species

IMA status

anerkannt, 1998

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Zeolite group  ⇒ ERI zeolite structure group  ⇒ Erionite series

Optical Properties

Color

weiß, grün, grau, orange

Streak color

weiß

Diaphaneity (Transparency)

transparent bis durchscheinend

Lustre

Glasglanz

max. Birefringence

0.004
Birefringence chart\! Erionite-Na title=Birefringence chart Erionite-Na

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.467

RI value γ / ε

1.471

Ri mean

1.468

2V angle

Uniaxial (+)

Crystallography

Crystal System

hexagonal

Class (H-M)

6/mmm

Space Group number

194

Space Group

P63/mmc

Cell parameters a (Å)

13.15

Cell parameters b (Å)

-

Cell parameters c (Å)

15.05

Cell parameters a/b or c/a

1.144

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

120°

Z

1

Volume (ų)

2253.817

X-Ray Powder Diffraction

11.43(100),
6.60(60),
4.32(90),
3.81(60),
3.75(40),
3.30(40),
2.858(70),
2.808(40)
XRD chart Erionite-Na

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

4

VHN (Hardness Vickers)

190 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.09 - 2.13 / Durchschnittlich = 2.11

2.127 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

USA/Kalifornien (California)/San Bernardino Co./Cady Mts.

Preface

Author (Name, Year)

Eakle, 1898

Additional Information

Vorsicht beim Umgang! Fasern geeigneter Größe können eingeatmet werden und Krebserkrankungen verursachen.
Dumortier P., Coplü L., Broucke I., Emri S., Selcuk T., De Maertelaer V., De Vuist P., Baris I.: Erionite bodies and fibres in bronchoalveolar lavage fluid (BALF) of residents from Tuzköy, Cappadocia, Turkey. Occupational and Environmental Medicine Vol. 58 (2001) S. 261-266.

Safety Instructions

Industrial chemicals are often present in powder form and therefore often contain much higher dangers than natural, crystalline substances. These hazard statements refer to the classification of industrially used chemical compounds that may also occur in this natural mineral. The hazard classification makes no claim to completeness.




Safety classes: H350: Kann Krebs erzeugen., H372: Schädigt die Organe bei längerer oder wiederholter Exposition.

References

American Mineralogist 44 (1959), 501.

American Mineralogist 54, 875-886.

Bulletin de la Société Française Minéralogie et de Cristallographie 92 (1969), 250.

American Mineralogist 83 (1998), 577-598.

Neues Jahrbuch für Mineralogie, Monatshefte (1995), 185.

Handbook of Mineralogy (Anthony u.w.), 2 (1995), 221.

Canadian Mineralogist 35 (1997), 1571.

American Mineralogist 83 (1998), 590.

European Journal of Mineralogy: 10 (1998), 1037.

Reviews in Mineralogy and Geochemistry 45 (2001), 1,69,117.

Georgia Cametti, Alessandro Pacella, Francesco Mura, Marco Rossi, Paolo Ballirano: New morphological, chemical, and structural data of woolly erionite-Na from Durkee, Oregon, U.S.A. American Mineralogist Vol. 98, Nr. 11-12 (2013) S. 2155-2163.

IMA group assignments

Other languages

German

Erionit-Na

Spanish

Erionita-Na

English

Erionite-Na

French

Erionite-Na

Russian

Эрионит-Na

Alternative Name

Erionit-(Na)

CNMNC symbol

Symbol

Eri-Na

Locations with GPS information

IDs

GUSID (Global unique identifier short form) jR5gjVWOZ0qnC_LSf6S-2Q
GUID (Global unique identifier) 8D601E8D-8E55-4A67-A70B-F2D27FA4BED9
Database ID 1050